KR101874988B1 - Load brake switch - Google Patents

Abstract

A load switch is provided. The load switch is installed in the enclosure and the enclosure to control the power supply to the load side bus, the module connection part which is installed in the enclosure and is electrically connected to the load side bus, and the module connection part to control the additional power supply to the load side bus Lt; / RTI > module.

Description

{LOAD BRAKE SWITCH}

The present invention relates to a load switch.

Generally, electric power having a voltage of about 154/345/765 / kV from a power plant is boosted to ultra high voltage so as to be transmitted to the first substation, and electricity transmitted to the first substation is stepped down, .

The electricity supplied from the secondary substation is supplied to the reception facilities of each customer through the distribution system consisting of the fictitious distribution line and the underground distribution line. Electricity supplied to the reception facilities of each customer is supplied to the low-pressure consumers receiving electricity through special high-pressure consumers, high-pressure consumers and various outdoor installation transformers. As the number of electric users increases and the form of electricity usage becomes more complicated, electric suppliers have installed multi-circuit breakers and circuit breakers for underground wiring lines in individual places and open or close the currents as necessary.

In the existing three-circuit three-switch underground switch, it is not necessary to install a separate switch when the number of circuits initially installed matches the number of circuits used. However, when the additional circuit is required, an enormous construction cost (installation of a switch, Etc.) There is a need to acquire the waste and permission to use the local government.

In the case of a four-circuit four-switch underground switch, if the number of circuits initially installed matches the number of circuits used, the first installed switch may be operated as it is. However, A large number of the total number of switchgears operated by the idle circuit is occupied and a huge initial investment cost is wasted.

Conventional switchgears are dangerous because it is dangerous to separate the buses with pressurized high voltage by circuit, and it is manufactured with a fixed number of circuits due to many fault factors. It is difficult to install switchgear of the appropriate circuit number at the early stage in the switchgear.

If the number of the first installed switch circuit is larger than the number of circuits used, the initial investment cost is excessively wasted due to excessive operation of the idle circuit, and in case of the small number, the additional construction cost is required to add the circuit number.

Korea Patent No. 10-0463600

SUMMARY OF THE INVENTION In order to solve the problems of the prior art described above, the present invention provides a load switch which is easy to attach and detach the switch module.

In addition, the present invention provides a load switch for easily opening the enclosure lid.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

In order to achieve the above object, a load switch according to an aspect of the present invention includes a basic opening / closing unit installed in an enclosure and an enclosure for controlling power supply to a load side bus, a module connection unit provided in an enclosure and electrically connected to a load side bus, And a switch module connected to the module connection part and controlling an additional power supply to the load side bus bar.

In one aspect of the present invention, the switch module may include a module body connected to each of the module connecting portion and the power source side bus bar, and a supporter for supporting the module body.

In one aspect of the present invention, the module body may include a terminal connection portion connected to the module connection portion, a power connection portion connected to the power source side bus, and a switch portion for controlling the additional power supply to the load side busbar.

In one aspect of the present invention, the module connection portion may include a connection stand portion connected to the switch module, and at least one bus bar connected to the connection stand portion and connected to the load side bus bar.

In one aspect of the present invention, the enclosure can be divided into a first accommodating area for accommodating the basic opening / closing part and a second accommodating area for accommodating the module connecting part and the switch module.

In one aspect of the present invention, the enclosure may further include a vertical frame installed to distinguish the first receiving area from the second receiving area.

In one aspect of the present invention, the enclosure may further include a cover that is opened and closed for detachment of the switch module.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It is provided to fully inform the owner of the scope of the invention.

According to one of the above-mentioned objects of the present invention, the load switch can be applied to every place where a branch line, a line segment and a high-pressure customer entrance are installed in an underground distribution line, And the number of circuits can be adjusted as needed. Accordingly, it is possible to economically operate the underground switch by reducing the occupancy cost of the underground switch including the idle circuit in the current distribution line, and minimizing the cost of the initial switch operation and reducing the cost of the additional switch.

1 is a front view showing a load switch according to an embodiment of the present invention.
2 is a view showing a sectional configuration of a basic opening / closing part according to an embodiment of the present invention.
3 and 4 are views showing the configuration of a module connection part according to an embodiment of the present invention.
5 is a front view of a switch module according to an embodiment of the present invention. 6 is a side view of a switch module according to an embodiment of the present invention.
7 to 10 are views showing the configuration of an enclosure according to an embodiment of the present invention.
11 is a view showing a configuration of an enclosure according to another embodiment of the present invention.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

The present invention can be constituted by a combination of a module connecting portion of the epoxy mold insulating ground switch and the switch module.

Further, in the present invention, the three-circuit three-switch type, which is a basic type, and the four-circuit type, four-switch type, which are basic units, are provided in the enclosure set by four switches and four switches of the ground-

In addition, the present invention is applicable to four circuit switch base blocks, circuit detachable epoxy mold insulating ground load switch, without modification, and the additional module is configured to be able to be attached to the fourth circuit in consideration of the position of the automatic control box .

Further, according to the present invention, an additional module can be installed on the upper part of the slide type, so that the opening angle of the lid on the upper part of the enclosure can be enlarged to a predetermined angle.

In addition, the present invention can improve the waterproofing and insulating properties by insulating with an insulating plug together with a semiconductive compound having water-tightness so that water can not easily penetrate into the grooves of the exposed portions of the bus bar.

Further, in the present invention, it is possible to easily check whether a live wire is present by disposing a probe point on an insulated plug. Further, the present invention can maintain the bonding force by removing the upper insulation plug and connecting the lower insulation plug and the additional module when the additional module is connected.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing a load switch according to an embodiment of the present invention.

Referring to FIG. 1, a load switch according to an exemplary embodiment of the present invention includes an enclosure 400, a basic opening / closing unit 100, a module connection unit 200, and a switch module 300.

The enclosure 400 protects the basic opening / closing unit 100, the module connecting unit 200, and the switch module 300. Here, the enclosure 400 can house the basic opening / closing unit 100, the module connecting unit 200, and the switch module 300. To this end, the enclosure 400 may be formed of a metal enclosure having a storage space therein. For example, the enclosure 400 is formed in a hexahedron shape such as a rectangular box, and can house the basic opening / closing unit 100, the module connecting unit 200, and the switch module 300 therein. In particular, the enclosure 400 can house the basic opening / closing part 100 in the first housing area 412 and accommodate the module connecting part 200 and the opening / closing module 300 in the second housing area 414.

Here, the basic opening / closing unit will be described with reference to FIG.

2 is a view showing a sectional configuration of a basic opening / closing part according to an embodiment of the present invention.

The basic opening / closing unit 100 controls power supply to the load side bus bar. Here, the basic opening / closing unit 100 may be connected to the bus bar of the power source to receive power. The basic opening / closing unit 100 is connected to the bus bar of the load side to supply the power supplied from the bus bar of the power source side to the bus bar of the load side.

The basic switching unit 100 may include at least one load switch. Here, the basic opening / closing unit 100 may include a plurality of load switches provided in the first storing area 412 of the enclosure 400 set by three switches. For example, the basic opening / closing unit 100 may be composed of a plurality of load switches provided in three sets of three switches in an enclosure 400 set by four switches.

The basic open / close unit 100 includes three power supply connection terminal units 113, 115 and 117 connected to the power supply side bus, three-phase load connection terminal units 121, 123 and 125 connected to the load side bus, a switch unit 130 for switching power supply connection, And may include a controller 140.

The basic opening and closing part 100 further includes a link assembly 152 for opening and closing the electrical connection, an earth bus 154 for grounding, a main housing 156 for protecting internal components, And a front cover 162, a current transformer (CT) 158 for current conversion, a phase connector 164 for connection of a three-phase power source, a fuse-mounted transformer for voltage conversion a fused PT 166, and a fused PT connector 168 for connecting the meter transformer.

Hereinafter, the module connection will be described with further reference to FIG. 3 and FIG.

3 and 4 are views showing the configuration of a module connection part according to an embodiment of the present invention.

The module connection part 200 may include a connection stand part 210 and at least one bus bar 220 for connection with the switch module 300.

The connection stand 210 houses the switch module 300. Here, the connection stand 210 may be formed to accommodate the switch module 300 corresponding to the switch module 300. At this time, the connection stand 210 may be formed with an upper opening corresponding to the switch module 300 so that the switch module 300 is inserted. Also, the connection stand 210 may be formed in three sections corresponding to the three-phase connection of the switch module 300.

The bus bar 220 connects the connection stand 210 to the load side bus bar. Where the busbar 220 can be connected to each of the three sockets of the connection stand 210. For example, a plurality of bus bars 220 may be horizontally disposed in parallel with the ground surface and connected to each of the three sockets of the connecting stand 210.

The connection stand 210 may further include a plug cover 230 made of a semiconductive compound having water tightness so that water does not penetrate the connection stand 210. The plug cover 230 is insulated and waterproofed, and it can be equipped with a probe point so that the presence of a live wire can be checked. When the switch module 300 is connected to the connection stand 210, the plug cover 230 is removed and the connection stand module 210 is connected to the switch module 300 to maintain the coupling force.

Hereinafter, the switch module 300 will be described with reference to FIGS. 5 and 6. FIG.

5 is a front view of a switch module according to an embodiment of the present invention. 6 is a side view of a switch module according to an embodiment of the present invention.

The switch module 300 controls the additional power supply to the load side bus. The switch module 300 is connected to the module connection part 200. Here, the switch module 300 may include a module body 310 and a supporter 350.

The module body 310 can be connected to the module connection part 200 and the power supply side buses, respectively. The module body 310 may include a power connection portion 320, a terminal connection portion 330, and a switch portion 340.

The power connection unit 320 receives power from the power bus cable. Here, the terminal connection portion 330 can be connected to the power supply bus bar of three phases. The power connection unit 320 may be formed of three sockets corresponding to the three-phase power supply bus cable. And the power connection unit 320 may be disposed toward the front for ease of connection.

The terminal connection part 330 supplies the power supplied from the power supply side bus line to the module connection part 200. Here, the terminal connection portion 330 can be inserted into the connection stand portion 210 of the module connection portion 200. At this time, the terminal connecting portion 330 may be formed of three inserting terminals corresponding to three sockets of the connecting stand 210. The terminal connection portion 330 may include a main housing 312 for protecting a terminal and a protection cap 314 for protection when inserting into the connection stand 210. The terminal connection portion 330 may be disposed downward for ease of insertion.

The switch unit 340 controls the additional power supply to the load-side bus bar. Switch portion 340 may include a link assembly 342 for electrical connection opening and closing and an earth bus 344 for grounding for control of additional power supply. In addition, the switch unit 340 may further include a gauge box for operation and information confirmation.

The supporter 350 supports the module body 310. Here, the supporter 350 can be installed for easy transportation of the module body 310.

Hereinafter, the enclosure will be described in more detail with reference to FIGS. 7 to 10. FIG.

7 to 10 are views showing the configuration of an enclosure according to an embodiment of the present invention.

The enclosure 400 includes an enclosure main body 410, first through fourth doors 421, 422, 423, 424, a first cover 430, and a second cover 430 for accommodating the basic open / close unit 100, the module connection unit 200, 2 cover 440. The cover 440 may be a metal plate.

The enclosure body 410 provides a framework for the construction of the enclosure 400. Also, the enclosure main body 410 is composed of a basic frame for coupling the first to fourth doors 421, 422, 423, 424. The enclosure main body 410 can be divided into a first accommodating area 412 in which the basic opening and closing part 100 is accommodated and a second accommodating area 414 in which the module connecting part 200 and the switch module 300 are accommodated have.

Each of the first to fourth doors 421, 422, 423, 424 is coupled to the enclosure main body 410 to be opened and closed. Here, each of the first to fourth door openings 421, 422, 423, 424 may be opened and closed on the front and rear sides of the enclosure 400, respectively. For example, each of the first to fourth doors 421, 422, 423, 424 may be opened and closed at an angle of about 120 degrees with reference to Fig.

The first cover 430 is coupled to the upper portion of the enclosure main body 410 corresponding to the first accommodating area 412. The first cover 430 is opened and closed to accommodate the basic opening / closing unit 100. Here, the first cover 430 may have an area corresponding to the first accommodating area 412.

The second cover 440 is coupled to the upper portion of the enclosure main body 410 corresponding to the second accommodating area 414. The second cover 440 is opened and closed to accommodate the module connecting portion 200 and the switch module 300. Here, the second cover 440 may have an area corresponding to the second receiving area 414. Also, the second cover 440 may be opened and closed at a predetermined angle for attaching / detaching the switch module 300. For example, the second cover 440 can be opened and closed at an angle of about 98 degrees with reference to Fig.

Here, the enclosure 400 can be opened and closed by separating the first lid 430 and the second lid 440 from each other.

11 is a view showing a configuration of an enclosure according to another embodiment of the present invention.

Referring to FIG. 11, the enclosure 400 may include at least one vertical frame 450 installed to distinguish the first receiving area 412 from the second receiving area 414. Here, the vertical frame 450 may be installed in the enclosure 400 to accommodate an upper slide type of the switch module 300.

The load switch according to an embodiment of the present invention can be applied to all places installed for opening and closing a line branch, a line segment and a high-pressure customer entrance in an underground distribution line, and a circuit number variable structure And the number of circuits can be adjusted as needed. Accordingly, it is possible to economically operate the underground switch by reducing the occupancy cost of the underground switch including the idle circuit in the current distribution line, and minimizing the cost of the initial switch operation and reducing the cost of the additional switch.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: basic opening / closing part
200: Module connection
300: switchgear module
400: enclosure

Claims (7)

In the load switch,
The load switch comprises:
Enclosure;
A basic opening / closing unit connected to the load-side bus bar in a first housing area formed on one side of the enclosure and having at least one switch for controlling the power supply to the load-side bus bar from the power supplied from the power bus bar;
A module connecting part formed to be able to slideably attach and detach the switch module for controlling the supply of additional power to the load side bus bar to the second housing area formed on the other side of the housing; , ≪ / RTI &
Wherein the module connecting portion includes a connection stand portion formed with an upper opening corresponding to the switch module to facilitate insertion of the switch module and a bus bar connected to the load bus bar,
The connection stand portion is formed in three sections corresponding to the three-phase connection of the switch module, and the bus bar connected to the load side bus bar is connected to each of the three sockets of the connection stand portion,
The upper portion of the connection stand portion may further include a plug cover including a semi-conductive compound having water tightness so as to prevent water from penetrating, and including an inspection point so as to check presence or absence of a live wire. And the connecting stand unit is connected to the switch module,
Wherein the switch module comprises: a module body connected to the module connection part and the power supply side bus cable, respectively; And a supporter for supporting the module body, wherein the module body includes: a terminal connection portion connected to the module connection portion; A power connection part connected to the power supply side bus cable; And a switch unit for controlling the additional power supply to the load side bus bar,
Wherein the terminal connecting portion is inserted into an upper portion of the connecting stand portion when connected to the connecting stand portion and is formed of three insertion terminals corresponding to three sockets of the connecting stand portion,
The enclosure includes an enclosure body, first, second, third and fourth doors, a first cover and a second cover for accommodating the basic opening / closing part, the module connecting part, 3, 4, and a base frame for separating the first receiving area from the second receiving area, wherein each of the first, second, third, and fourth doors has an angle of 120 degrees to the front and rear sides of the enclosure, And the first cover is coupled to the upper portion of the enclosure main body corresponding to the first housing area and the second cover is coupled to the upper portion of the enclosure main body corresponding to the second housing area, Wherein the cover is opened and closed at a predetermined angle for receiving and removing the module connection portion and the switch module.
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